Page 228 - Mechatronic Systems Modelling and Simulation with HDLs
P. 228

Appendix








               Symbols


               Lower case letters
               a                    Acceleration; parameter to be estimated
               ˆ a                  Identified parameter
               a                    Local acceleration
               a pe                 Angle of accelerator pedal
               a i                  Polynomial coefficient
               a ig                 Ignition advance angle
               b                    Damping coefficient, generator voltage constant

               b i                  Polynomial coefficients
               c W                  Drag coefficient
               e k                  Error signal at time k
               f                    Function
               g                    Gravity
               h                    Increment
                                    Form function i
               h i
                                    Inductive and capacitive component of current between
               i ij,L ,i ij,C
                                       the nodes i, j
               k                    Spring constant
                                    Entry i, j of the stiffness matrix
               k ij
               m                    Mass
               m fuel               Fuel mass
               m tv                 Air mass via the throttle valve
               m ij                 Entry i, j of the mass matrix
               m air                Air mass
               m idle               Air mass via the idle setting
               n                    Number of measurements

               n k                  Interference signal
               n cs                 Rotation speed of crankshaft
               p                    Pressure

               p el                 Electrostatic pressure
               p i0 ,p i1           Load at the nodes 0 and 1


               Mechatronic Systems  Georg Pelz
                2003 John Wiley & Sons, Ltd  ISBN: 0-470-84979-7
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